– 27 –
– 28 –
SPP-A985
4-2. BLOCK DIAGRAM – HANDSET SECTION –
64 PLL REF
DSIN
TXDATA
ADIN2
GPIO2/MON2
GPIO5/TST1
AOP
AON
RINGER
AIN
P1.1
P6.0
P6.1
P6.2
P1.5
P6.3
P1.7
P5.0
P5.4
P1.6
55
63 SCLK
62 SOUT
59 SIN
48 XTAL2
49 XTAL1
56 GPIO4/TST0
GPIO3/MON3
57
RESET
54
80
3
7
ADIN1
13 P1.2
14 P1.3
15 P1.4
2 DVCC1
AVCC1
78
76 REG CTRL
11 P1.0
67
68
79
58
1
4
10
5
9
PLL REF
RX AUDIO
TX DATA
RSSI
PLL EN
8
SER DATA OUT
7
SER CLK
3
RX PWR
CS
SK
DI
DO
RF UNIT (HS)
1
2
3
4
EEPROM
U1006
11
TX PWR
3.1V
(MCU PWR)
3.6V
(V BATT)
BATTERY
CHARGER
Q1010,1014
CHARGE DET
Q1008
RF POWER
CONTROL
Q1007
RF POWER
CONTROL
Q1006
REG
U1007
H
S1003
VOL
M
L
A
B
SW2
X1001
18.4MHz
83
84
90
4
8
5
9
6
10
16
6
17
18
EAOUT
P6.5
8
87
P6.4
EAIN 88
7
5
4
LCD DB4
LCD DB5
LCD DB6
LCD DB7
LCD E
LCD R/W
LCD RS
LCD1001
LCD MODULE
30
I
34
35
I
39
KEY MATRIX
S1023-S1044
ROW0-ROW4
COL0-COL4
HEADSET SENSE
HEADSET EN
RINGER DRIVE
Q1009
12
LED DRIVE
Q1002
(LCD/KEY PAD BACK-LIGHT)
U1002
BUZZER
(RINGER)
U1005
SPEAKER
U1003
MIC
ANT1001
HELICAL ANTENNA
SYSTEM CONTROL
U1001
I
P4.0
P4.4
I
RECHARGEABLE
BATTERY
BP-T23
DC 3.6V
CHARGE
TERMINAL
02
J1001
J1002
J1003
J1004
S1002
(ROTARY ENCODER)
D1003,1004
D1030
• Signal Path
: TX (To Tel Line)
: RX (From Tel Line)
: bell
75 BATMON
VBAT
74
SWITCH
Q2004
SWITCH
Q2001
BUFFER
Q2002
MIC AMP
Q2003
J2001
POWER
CONTROL
Q1004
HAND MAIN BOARD
50 DOUT1
D3001
I
Ref No.
S1023
S1024
S1025
S1026
S1027
S1028
S1029
S1030
S1031
S1032
S1033
S1034
S1035
S1036
S1037
S1038
S1039
S1040
S1041
S1042
S1043
S1044
PANEL DESIGNATION
PAUSE
MUTING
PGM
"#"
"0" OPER
"*" TONE
"9" WXYZ
"8" TUV
"7" PQRS
"6" MNO
"5" JKL
"4" GHI
"3" DEF
"2" ABC
"1"
REDIAL
INTERCOM
HOLD
FLASH
OFF
TALK
TALK
86
Summary of Contents for SPP-A985 - Cordless Telephone With Answering System
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